user_memcpy
#define user_memcpy fssh_user_memcpy
user_memcpy(void* to, const void* from, size_t size)
#define user_memcpy(x...) (memcpy(x), B_OK)
user_memcpy(void* to, const void* from, size_t size)
user_memcpy(void *dest, const void *source, size_t length)
user_memcpy(void *to, const void *from, size_t size)
#define user_memcpy(a, b, c) fssh_memcpy(a, b, c)